【摘要】：以烏魯木齊軌道交通1號(hào)線中營(yíng)工站—小西溝站區(qū)間地鐵隧道工程為研究對(duì)象,研究了城市復(fù)雜環(huán)境下區(qū)間隧道掘進(jìn)爆破設(shè)計(jì)和振動(dòng)監(jiān)測(cè)。根據(jù)爆破振動(dòng)監(jiān)測(cè)結(jié)果,分析了隧道上方地表振動(dòng)傳播規(guī)律以及人行天橋橋墩振動(dòng)及其頻譜特性,據(jù)此調(diào)整爆破設(shè)計(jì)方案、優(yōu)化爆破設(shè)計(jì)參數(shù)、改進(jìn)施工工藝,有效降低了隧道掘進(jìn)爆破對(duì)上方4跨連續(xù)箱梁人行天橋擴(kuò)大基礎(chǔ)及兩側(cè)建筑物的振動(dòng)影響,確保地鐵隧道爆破在城市復(fù)雜環(huán)境下施工安全。
[Abstract]:Taking the subway tunnel project between Zhongying Station and Xiaoxigou Station of Urumqi Rail Transit Line 1 as the research object, the blasting design and vibration monitoring of interval tunnel excavation in urban complex environment are studied. According to the monitoring results of blasting vibration, the propagation law of surface vibration above the tunnel and the vibration and spectrum characteristics of the pier of pedestrian overpass are analyzed. According to this, the blasting design scheme is adjusted, the blasting design parameters are optimized, the construction technology is improved, the vibration influence of tunnel excavation blasting on the enlarged foundation of the upper four-span continuous box girder footbridge and the buildings on both sides are effectively reduced, and the construction safety of subway tunnel blasting in the complex urban environment is ensured.
【作者單位】： 北京市政路橋股份有限公司;北京工業(yè)大學(xué)建筑工程學(xué)院;
【基金】：北京市政路橋股份有限公司科技開(kāi)發(fā)項(xiàng)目 國(guó)家自然科學(xué)基金重點(diǎn)項(xiàng)目(12004014201501)
【分類(lèi)號(hào)】：U231.3;U455.6
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本文編號(hào)：2510087